Sec Form 4 Filing - HELLER JOHN S @ BLACK BOX CORP - 2019-01-07

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person HELLER JOHN S 2. Issuer Name and Ticker or Trading Symbol BLACK BOX CORP [ BBOX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1000 PARK DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 01/07/2019 (Street) LAWRENCE, PA15055 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, $.001 par value 01/07/2019( 1 ) U 52,320 D $ 1.1 ( 1 ) 0 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Option (Right to Purchase) $ 2.85 01/07/2019( 2 ) D 30,000 ( 2 ) ( 2 ) Common Stock 30,000 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other HELLER JOHN S 1000 PARK DRIVE LAWRENCE, PA15055 X Signatures /s/ Ronald Basso by Power of Attorney for John S. Heller 01/09/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On November 11, 2018, Black Box Corporation (the "Company") entered into an Agreement and Plan of Merger (the "Merger Agreement") with AGC Networks Pte Ltd. ("Top Parent"), BBX Main Inc., a wholly owned subsidiary of Top Parent ("Parent"), BBX Inc., a wholly owned subsidiary of Parent ("BBX Intermediate"), and Host Merger Sub Inc., a wholly owned subsidiary of BBX Intermediate ("Merger Sub"). Pursuant to the terms of the Merger Agreement, and the tender offer commenced in connection therewith, each share of Company common stock held by the Reporting Person was tendered for $1.10 per share, net to the holder thereof, in cash, without interest thereon (the "Offer Price"). Pursuant to the Merger Agreement, on January 7, 2019 (the "Effective Time"), Merger Sub was merged with and into the Company, with the Company being the surviving corporation and becoming a wholly owned subsidiary of BBX Intermediate. ( 2 )Pursuant to the Merger Agreement, at the Effective Time, each out-of-the-money Company option that was outstanding and unexercised (whether vested or unvested) was cancelled and terminated for no consideration. This option was out-of-the-money at the Effective Time.

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